Cut-off for engines



(No Model.) 2 Sheets-Sheet 1. G. M. MULLER.

OUT-OFF FOR ENGINES.

Patented Dee. 3, 1889.

QMMZ'Z'JZEZZ N. PETERS, Fhnlo-Lflhcgmphur, Washingicn, n.c.

(No Model.) 2 Sheets- Sheet 2.

G. M. MULLER. GUT-OFF FOR ENGINES.

No. 416,482. Patented Dec. 3, 1889.

Swan W213 N PETERS. FhoXn-Lllhugrzphur, Washington. D. C-

UNITED STATES PATENT OFFICE.

GEORGE M. Ml jIlIiER, OF NEIVBURG, NEIV YORK.

CUT-OOFFQFORY ENGINES.

SPECIFICATION forming part of Letters Patent No. 416,482, dated December 3, 1889.

Application filed September 6, 1889. Serial No. 323,140. (No model.)

To aZZ whom it may concern.-

' Be it known that I, GEORGE M. MiiLLER, a citizen of the United States, residing at Newburg, in thccounty of Orange, State of New York, have invented certain new and useful Improvements in Out-Offs for Engines, of which the following is a specification, reference being had therein to the. accompanying drawings.

This invention relates to certain new and useful improvements in steam-engines, and more particularlyto cut-off mechanism; and the novelty resides in the peculiarities of construction, and the combinations, arrangement, and adaptation of parts, all as more fully hereinafter described, shown in. the drawings, and then particularly pointed out in the appended claims.

The invention is clearly illustrated in the accompanying drawings, which, with the letters of reference marked thereon, form apart of this specification, andin which- Figure 1 is a side view of the steam-valve gear embodying my improvement. Fig. 1 is a top plan of the hinged trips and their connections. Fig. 2 is a view, at right angles to Fig. 1, of the parts shown therein. Fig. 3 is an edge View, partly in section, of the yoke. Fig. 4 is a section showing the sliding block in the yoke.

Like letters of reference indicate like parts throughout the several views.

Referring to the drawings by letter, A designates ordinary rotary valves, B their levers, and B rods connecting said levers to the yokes D, as at D. The stems D of these yokes are guided at their upper ends in suitable guides D and at their lower ends by means of the plungers in the dash-pots O.

E is the steam wrist-plate, the pin E of which is designed to be connected with the eccentric-rod. (Not shown.)

F are pins attached to the wrist-plate at opposite ends thereof, as shown in Fig. 1, for the purpose of lifting the yoke and operating the valve, as hereinafter described.

G are guide-blocks in the yokes, and G are brass sliding blocks in the yoke and connected with the Wrist-plate by means of the pins F.

H is the governor-shaft, operated by the rod H of the governor, and H a lever upon the end of the governor-shaft.

H is a rod pivotally connected With said lever H and carrying at its upper end the block or plate H slotted, as shown, vertically, and having hinged thereto on opposite sides the trips I, carried by a transverse shaft 1, and adjustable by means of the screws 1 for the purpose of changing the inclination of the trips. The trips I are tapered or inclined, as shown in Fig. 1.

J are swinging toes or latches pivoted at J upon the adjacent sides of the yokes D, and J 2 are springs bearing against the under face of the acting points of said toes.

In operation the wrist-plate E is moved back and forth by the eccentric, as indicated by the dotted lines in Fig. 1, reciprocating the yokes through the pins F, and this movement of the yoke through the connection B of B causes the valves A to rotate. By the action of the governor the yokes are released by the tripping of the swinging toes J, coming in contact with the hinged trips I, sooner or later, thus causing the valves to close for the purpose of regulating the engines.

WVhat I claim as new is I 1. The combination, with the yokes and the toes thereon, of the trips I and connections between said trips and the governor, substantially'as and for the purpose specified. Q

2. The combination, with the yokes and the pivoted toes thereon, of the inclined trips and connections, substantially as described, between said trips and the governor, whereby said trips are raised or loweredby the action of the governor, as set forth.

3. The combination, with the yokes and the pivoted toes thereon, of the plate H the inclined trips thereon, connections, substantially as described, between said plate and governor, and the adj Listing-screws for changing the inclination of the trips, as set forth.

4. The combination, With the yokes and their connection with the wrist-plate, of the valves, valve-levers, the rods B, connecting said levers with the yokes, the toes on the adjacent sides of the yokes, the plate between the yokes, the trips on said plate, and connections, substantially as described, between said plate and the governor, as set forth.

5. The combination, with the yokes and the with the wrist-plate, and the pivoted toe on wrist-plate,of the sliding block Gin the yoke, said yoke, substantially as described. 10 the block G, and the pin F, connecting said In testimony whereof I afiix my signature in blocks with the wrist-plate, substantially as presence of two witnesses.

shown and described. GEORGE M. Mi TLLER.

6. The combination, with the yokes and the \Vitnesses: wrist-plate, of the sliding block G in the yoke, "ILLIAM IIUMPHREYS,

the block 4, the pin F, connecting said block CHARLES J. HOWELL. 

